Water-gage valve.



W. B. PETTUS." WATER GAGE VALVE. APPLICATION FILED MAY13, 1913.

Patented Feb. 17, 1914.

. warEn-eaoEvALv-n ABLE To all whomz't may concern I Be it known that I, ll intmir B. PETTUs, a citizen of the United States, residing at I Atlanta',- in' the county of'liulton and State of Georgia, have invented new and useful Improvements in Vvater-Gag'e Valves, of

which the followin is a specification.

This" invention relates I to improvements in valvejstructures and has particular application to valves for the water glasses of steam boilers. 3

In carrying-out the present invention, it is my purpose to provide'a valve structure -which will be, found especially useful in conjunction with the water glasses of steam boilers and .which will closeautomatically in the event of'the. water glass breaking,

' thereby eliminating the escape of steam and water from'the boiler.

It is also my purpose to provide fa valve of the class described which, when the water glass breaks, will be automatically closed, under the action of the steam or water seeking its way to the; fractured glass.

Furthermore, I aim. tov providea valve structure of the type set forth which will embrace the desired features of simplicity,

efiiciency and durability coupled with cheapness of cost in manufacture, marketing and installation and which may be operated manually so *as to cut oil communication be tween the boiler and the Water glass.

7 lViththe above and other objects in view, the invention consists in the'construction, combination and arrangement of parts. hereinafter set forth in and-falling within.

In the accompanying drawing, Figure 1 is a viewv in elevation of a water glass equipped with valves each constructed in accordance with the present invention, one

i of the valves being shown in section. Fig.

2 is a section on the line 2-2 ofFig. 1. Referring now to the accompanying drawing in detail, the numeral 1 designates a water glass adapted to be in. communication with the water column of a steam boiler through the medium of'valves 2, 2 located at theoppositeends' of the water glass and controlling communication be.- tween the latter and the water column.

The valves 2, 2' are substantially identi Specification of Letters Patent.

' Pa-tented Feb. 17, 19.14,

Application filed May 13, 1913. Serial No. 767,380.

i equipped with a union or coupling. ti deslgned t'o receive the respective endof the.

At diametrically opposite 'water glass 1'.

points, the body 8 is formed with outwardly PIOJGCt-ll'lg bosses 6,,7, the boss -7 vbeing formed with a longitudinally threaded bore ${while' the boss 6 'is formed with apa -j sage 9 coaxial with the bore 8 in the boss-T and of a'diameter' greater than that of said bore 8. The outer extremity of theboss 6 hassu'itably connected thereto a collar-or sleeve 10- extending outwa'rtll-y of such boss and threaded, exteriorly t *recerve -a tubular bonnet'or hood'll havingthe free and thereof restrictedto provide a coupling-member 12ivhereby the free endflof the bonnet nay be tapped into the-{w nter 'columirot boiler 1.. Connected-to the sleeve 10 ,al?

diametrically oppositepoints and extending transversely thereof. is a guide strip 13 formed with In aperture disposed in axial alin'ement with the passage 9 and the bore 8 .in the bossesfi and 7 respectively, while threadedly engaging thewall of the bore S .and adapted for rotation therein is a shank 14 equipped at its outer extremity with a hand wheel 15 and having: the inner ex treinity thereof seated within a socket 16 formed in the adjacent end ofa valve stem 17 disposed within the aperture in the guide strip 13' and the passage and carrying.

1 within the sleeve 10, a valve disk 18 adapted to cooperate with a valve seat 19 formed at the outer extremity of thepassa'ge 9. Suitable packing 20 surrounds the shank 14 at the outer-extremity of the boss 7 and is held in place by means of a packing nut 21 so that leakage at this point will be avoided.

when the parts are in the positions illustrated in Fig. 1 of thedrawing, it will be seen that communication is established between theboiler and the water glass 1 so thatv the level ofthe Waterwithin the boiler may be'readily determined. Should it be desired to cut off communication between the boiler, or the water column of the boiler, and the water glass,-the hand. wheel 15 is rotated with the effect to rotate the shank 14 and move the latter longitudinally of cal in construction and each comprises a;

the valve casing, incident to the threads thereon engaging the threaded wall of-the bore 8, thereby moving the valve 18 into engagement with its seat 19.

In order that the valve disk 18 will be moved to closed position automatically in Ru f it d 01 101' blades upon 75 and adapbed to formed twee-n Mm 

